In the first of the Imagination Station series by Focus on the
Family, we meet cousins Beth and Patrick, who end up traveling back in
time to the age of the Vikings on a mysterious quest to save one of Mr.
Whittaker's ancestors. The quest involves gathering different things
from different time periods. They meet Erik the Red.
I'm a history buss, and I think it's interesting. The Viking time period
is not a period that seems to get much attention, and I'm glad they
decided to place Beth and Patrick there.
The books are simple, but seem realistic (other than the fact that time
travel is impossible). Beth and Patrick wear costumes so they fit in
semi-well, and they never seem to be able to change the past. They
always find what they're looking for. The books also emphasize God more,
although it seems to be everyone except the two children who refer to
Him.
The characters are not always fleshed out, but given that it is for younger readers, that could be overlooked.
The content is interesting and gives information about a historical event often overlooked by writers and researchers.
I would say an 8 on a 10 point scale.